/**
 * @file XListViewHeader.java
 * @create Apr 18, 2012 5:22:27 PM
 * @author Maxwin
 * @description XListView's header
 */
package com.lgmshare.component.widget.recyclerview;

import android.content.Context;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.animation.Animation;
import android.view.animation.RotateAnimation;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.TextView;

import com.lgmshare.component.R;


public class XRecyclerViewHeader extends LinearLayout {

    private final int ROTATE_ANIM_DURATION = 180;

    public final static int STATE_NORMAL = 0;
    public final static int STATE_READY = 1;
    public final static int STATE_REFRESHING = 2;

    private LinearLayout mContainer;
    private ImageView mArrowImageView;
    private ProgressBar mProgressBar;
    private TextView mHintTextView;
    private int mState = STATE_NORMAL;

    private Animation mRotateUpAnim;
    private Animation mRotateDownAnim;

    public int mMeasuredHeight;

    public XRecyclerViewHeader(Context context) {
        super(context);
        initView(context);
    }

    /**
     * @param context
     * @param attrs
     */
    public XRecyclerViewHeader(Context context, AttributeSet attrs) {
        super(context, attrs);
        initView(context);
    }

    private void initView(Context context) {
        setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));
        // 初始情况，设置下拉刷新view高度为0
        LayoutParams lp = new LayoutParams(LayoutParams.MATCH_PARENT, 0);
        mContainer = (LinearLayout) LayoutInflater.from(context).inflate(R.layout.xrecyclerview_header, this, false);
        addView(mContainer, lp);
        setGravity(Gravity.BOTTOM);

        measure(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
        mMeasuredHeight = getMeasuredHeight();

        mArrowImageView = findViewById(R.id.xlistview_header_arrow);
        mHintTextView = findViewById(R.id.xlistview_header_hint_textview);
        mProgressBar = findViewById(R.id.xlistview_header_progressbar);

        mRotateUpAnim = new RotateAnimation(0.0f, -180.0f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
        mRotateUpAnim.setDuration(ROTATE_ANIM_DURATION);
        mRotateUpAnim.setFillAfter(true);
        mRotateDownAnim = new RotateAnimation(-180.0f, 0.0f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);
        mRotateDownAnim.setDuration(ROTATE_ANIM_DURATION);
        mRotateDownAnim.setFillAfter(true);
    }

    /**
     * 设置显示状态
     *
     * @param state
     */
    public void setState(int state) {
        if (state == mState) return;

        if (state == STATE_REFRESHING) {// 显示进度
            mArrowImageView.clearAnimation();
            mArrowImageView.setVisibility(View.GONE);
            mProgressBar.setVisibility(View.VISIBLE);
        } else {// 显示箭头图片
            mArrowImageView.setVisibility(View.VISIBLE);
            mProgressBar.setVisibility(View.GONE);
        }

        switch (state) {
            case STATE_NORMAL:
                if (mState == STATE_READY) {
                    mArrowImageView.startAnimation(mRotateDownAnim);
                }
                if (mState == STATE_REFRESHING) {
                    mArrowImageView.clearAnimation();
                }
                mHintTextView.setText(R.string.xrecyclerview_header_hint_normal);
                break;
            case STATE_READY:
                if (mState != STATE_READY) {
                    mArrowImageView.clearAnimation();
                    mArrowImageView.startAnimation(mRotateUpAnim);
                    mHintTextView.setText(R.string.xrecyclerview_header_hint_ready);
                }
                break;
            case STATE_REFRESHING:
                mHintTextView.setText(R.string.xrecyclerview_header_hint_refreshing);
                break;
            default:
        }

        mState = state;
    }

    public int getState() {
        return mState;
    }

    public void setVisiableHeight(int height) {
        if (height < 0)
            height = 0;
        LayoutParams lp = (LayoutParams) mContainer.getLayoutParams();
        lp.height = height;
        mContainer.setLayoutParams(lp);
    }

    public int getVisiableHeight() {
        return mContainer.getHeight();
    }

    public int getFactHeight() {
        return mMeasuredHeight;
    }
}
